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Windows Applications Insecure Library Loading

The Official, Verified Secunia List:
http://secunia.com/advisories/windows_insecure_library_loading/

The list is continuously updated as we confirm the vulnerability reports so check back regularly too see if any of your apps are affected.


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TITLE:
LINGO Insecure Library Loading Vulnerabilities

SECUNIA ADVISORY ID:
SA41573

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/41573/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=41573

RELEASE DATE:
2010-09-27

DISCUSS ADVISORY:
http://secunia.com/advisories/41573/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/41573/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=41573

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Some vulnerabilities have been discovered in LINGO, which can be
exploited by malicious, local users to gain escalated privileges and
by malicious  people to compromise a user's system.

1) The application loads libraries (e.g. myuser.dll) in an insecure
manner, which can be exploited to load arbitrary libraries by
tricking a user into e.g. opening a LINGO document (.ltf) located on
a remote WebDAV or SMB share.

Successful exploitation allows execution of arbitrary code.

2) The application is installed in a directory in the system root
with insecure permissions by default (granting members of the "Users"
group permissions to create files and directories). This can be
exploited to execute arbitrary code with the privileges of another
user running the application by placing e.g. a malicious library file
in the installation directory.

NOTE: This is a general problem for the majority of Windows
applications when installed outside the "Program Files" folder due to
unsafe default permissions combined with the way libraries are
located.

The vulnerabilities are confirmed in versions 11.0.1.6 and 12.0.2.20.
Other versions may also be affected.

SOLUTION:
Set secure permissions on the installation directory and do not open
untrusted files.

PROVIDED AND/OR DISCOVERED BY:
APA-IUTcert Vulnerability Analysis Team

Additional information provided by Secunia Research.

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

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